DARIEN, IL · DuPage County
GLEN ELLYN HEIGHTS SUBDIVISION Water System
Consumer Confidence Report status
GLEN ELLYN HEIGHTS SUBDIVISION must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show 1 item for GLEN ELLYN HEIGHTS SUBDIVISION that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Illinois’s official records. Always confirm current status with Illinois before making decisions based on this information.
System facts
- System ID (PWSID)
- IL0435500
- System type
- Community Water System
- Population served
- 1,931
- Service connections
- 650
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
GLEN ELLYN HEIGHTS SUBDIVISION is one of 773 community water systems in Illinois in the 501 to 3,300 people size category, serving 1,931 people from surface water.
As of August 1, 2026, its federal record holds 8 entries between 1977 and 2025, of which 1 remains open; none are health-based.
Of the 8, 7 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves synthetic organic chemicals, the Consumer Confidence Rule, and the Stage 2 Disinfectants and Disinfection Byproducts Rule.
Violation history
Consumer Confidence Report Inadequate Reporting
—Consumer Confidence Rule
July 1, 2025
UnaddressedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
October 1, 2024 – December 31, 2024
ResolvedFollow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
October 1, 2023 – February 27, 2024
ResolvedMonitoring, Regular
—Benzo(a)pyrene
January 1, 2023 – December 31, 2025
ArchivedMonitoring, Regular
—Carbofuran
January 1, 2023 – December 31, 2025
ArchivedMonitoring, Regular
—Chlordane
January 1, 2023 – December 31, 2025
ArchivedMonitoring, Regular
—OXAMYL
January 1, 2023 – December 31, 2025
ArchivedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
June 30, 1977 – June 29, 1981
Archived
Unaddressed no corrective action on record yetResolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 2025 | Consumer Confidence Report Inadequate Reporting | Consumer Confidence Rule | — | Unaddressed |
| October 1, 2024 – December 31, 2024 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| October 1, 2023 – February 27, 2024 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Resolved |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Benzo(a)pyrene | — | Archived |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Carbofuran | — | Archived |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Chlordane | — | Archived |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | OXAMYL | — | Archived |
| June 30, 1977 – June 29, 1981 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
Unaddressed no corrective action on record yetResolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- January 16, 2026State Violation/Reminder Notice1 linked violation
- January 16, 2026State Public Notification requested1 linked violation
- January 16, 2026State Violation/Reminder Notice1 linked violation
- January 16, 2026State Public Notification requested1 linked violation
- January 16, 2026State Violation/Reminder Notice1 linked violation
- January 16, 2026State Public Notification requested1 linked violation
- January 16, 2026State Violation/Reminder Notice1 linked violation
- January 16, 2026State Public Notification requested1 linked violation
- July 22, 2025State Violation/Reminder Notice1 linked violation
- June 27, 2025State Public Notification received1 linked violation
- February 28, 2025State Compliance achieved1 linked violation
- January 14, 2025State Public Notification requested1 linked violation
- January 14, 2025State Violation/Reminder Notice1 linked violation
- June 17, 2024State Public Notification received1 linked violation
- February 27, 2024State Compliance achieved1 linked violation
- October 11, 2023State Violation/Reminder Notice1 linked violation
- October 11, 2023State Public Notification requested1 linked violation
- April 15, 1999State Violation/Reminder Notice1 linked violation
- April 15, 1999State Public Notification requested1 linked violation
- August 1, 1989State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
Common questions
Is GLEN ELLYN HEIGHTS SUBDIVISION required to publish a Consumer Confidence Report?
- Yes. GLEN ELLYN HEIGHTS SUBDIVISION is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is GLEN ELLYN HEIGHTS SUBDIVISION’s next Consumer Confidence Report due?
- GLEN ELLYN HEIGHTS SUBDIVISION’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does GLEN ELLYN HEIGHTS SUBDIVISION have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show 1 item for GLEN ELLYN HEIGHTS SUBDIVISION that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
ADAMS, JONATHAN
630-964-7503
DARIEN, IL 60561